Downtown Pet Supply Rechargeable Remote Control Dog Training Collar with Vibration, Shock, Tone. Waterproof, Submersible, Safe Behavior, No Jump, No Bark, Sport, Obedience, 900+ Feet Safe effective off leash behavior training, no jump, no bark, stops aggressive behaviors Easily alternate between vibration (100 levels), static stimulation (100 levels) and tone Rechargeable ergonomic remote control and waterproof receiver Range over 900+ feet (simultaneously recharge both units); Adjustable TPU collar for dogs 20 to 120 lbs Buy with Confidence - 60 Day Manufacture Warranty